16285-2423 GHE  24

 
 
16h 28m 32.69s -24 22' 45.0" P.A. 234 mag 7.20,8.40 Sp G7
 
 
Coord 2000
16285-2423
Discov num
GHE  24
Comp
Coord arcsec 2000
16 28 32.69 -24 22 45.0
Date first
1990
Date last
2012
Obs
7
Pa first
227
Pa last
234
P.A. Now (θ)
234°
Sep first
0.1
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
7.20
Mag sec
8.40
delta mag (ΔM)
1.2
Spectral class
G7 (yellow)
Pri motion ra
-018
Sec motion ra
Pri motion dec
-021
Sec motion dec
Notes
O K (Orbital solution, K-band or other infrared magnitudes)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
233.5
Precise sep
0.049
Constellation
Ophiuchus
last precise pa
233.5
last precise sep
0.049
 
 
ORBITAL ELEMENTS
 
 
Period (P)23.2y± 1.1 Periastron (T)2002.6y± 7.7 Semi-major axis (a)0.048a± 0.42
Eccentricity (e)0.26± 0.73 Inclination (i)130°± 37 Longitude of periastron (ω)67°± 46
Node (Ω)90°± 43 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2012
label rho theta
2000 0.040 88.8
2001 0.036 73.4
2002 0.029 51.9
2003 0.024 18.4
2004 0.025 338.5
2005 0.032 309.7
2006 0.039 291.9
2007 0.046 279.6
2008 0.050 269.9
2009 0.052 261.4
2010 0.052 253.3
2011 0.051 245.1
2012 0.049 236.4
2013 0.047 226.8
2014 0.043 215.8
2015 0.041 203.2
2016 0.039 189.0
2017 0.038 173.6
2018 0.038 157.9
2019 0.039 142.9
2020 0.041 129.0
2021 0.042 116.2
2022 0.043 104.0
2023 0.041 91.4
2024 0.037 76.8
2025 0.030 57.0
2026 0.024 26.2
2027 0.024 346.0
2028 0.030 314.4
2029 0.038 294.9
2030 0.044 281.8

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





wds16285-2423a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16285-2423 GHE 24 1994 5 164 0.2 14.15   162832.69-242245.0
16285-2423 GHE 24 2012 7 234 0.0 7.20 8.40 G7 K 162832.69-242245.0

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